CornerShot is a weapon accessory invented by Lt. Col. Amos Golan of the Israeli Defense Forces in cooperation with American investors. It was designed in the early 2000s for use by SWAT teams and special forces in hostile situations usually involving terrorists and hostages. Its purpose is similar to that of the periscope rifle; it allows its operator to both see and attack an armed target, without exposing the operator to counterattack. Forms and variations The CornerShot's shooting range is claimed to be accurate and effective to 100 meters with 9×19mm, .40 S&W, and .45 ACP pistols, and is claimed to be effective to 200 meters with a 5.7×28mm pistol. The device is available in several variations, including the Beretta 92F, a model widely used by US security forces, the Glock, SIG Sauer, and CZ. The mechanism can also mount various accessories such as detachable cameras, audio/video transmission kits, visible and IR lasers, tactical flashlights, suppressors, and can fire rubber bullets. A standard pistol version is available, along with a 40 mm grenade launcher. Because they are fitted with high-resolution digital cameras, any variant can also be used as a surveillance tool. All the models come with the same stock camera and 2.5-inch color LCD monitor, providing a video observation and sighting system with powerful transmission capability. The flashlight and camera let it operate in either day or night. A variety of optional interchangeable cameras, as well as a folding stock, are available, and a universal accessory rail is standard. Future versions will be mountable on the US M16 rifle and a European joint assault weapon. The system can also be remotely emplaced and operated from behind camouflage, with a wire video-out connection sending images to a commander at a distance or saved to a two-hour flash memory chip attached to the gunstock. Standard The standard CornerShot mounts a normal semi-automatic pistol in the front part of the weapon, with a remote linkage to the trigger mechanism in the rear part, it has a trigger pull of 21 newtons (4.7 lbf). It is 820 millimetres (32.67 in) long, with a weight of 3.86 kilograms (8.5 lb). 40 mm grenade launcher The 40 mm grenade launcher is a breech-loading, single shot grenade launcher. Manually operated, it fires all 40mm grenades, less-lethal and non-lethal ammunition, and tear/irritant gas projectiles; spent cartridges are ejected for easier reloading. The same system is available in